A post shared by The Cambridges (@teatimewiththecambridges) on Oct 17, 2018 at 6:32am PDT

The author said that both William and Charlotte have Princess Diana’s smile, which seems to have been passed down.

“Look at this and tell me they don’t look alike (to me),” the post read. “Ever since she was little Charlotte has had the “Diana Smirk” which William obviously got from Diana and Charlotte got from her daddy! She is definitely daddy’s little lookalike and daddy’s little girl!”